Recent Research on Repair and Strengthening of Reinforced Concrete Structures

by J. O. Jirsa, Univ of Texas, United States,
M. E. Kreger, Univ of Texas, United States,

Document Type: Proceeding Paper

Part of: Seismic Engineering: Research and Practice


As part of the research effort organized following the 1985 Mexico City earthquake, a series of tests were conducted at the University of Texas at Austin to assess the performance of redesigned structures. Two techniques basic to many of the repair and strengthening schemes in Mexico City were studied. The objective of the program was to evaluate the procedures which appear to have particular applicability to U.S. practice. In this report, tests on structures or subassemblages redesigned using (a) infill walls to strengthen and stiffen non-ductile frames, and (b) jacketing of damaged or inadequate columns to improve strength, stiffness, or ductility are described.

Subject Headings: Strength of materials | Developing countries | Structural strength | Stiffening | Ductility | Concrete structures | Earthquake resistant structures | Concrete frames | Mexico City | Mexico

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